We’ve all been here: You start up your vehicle in the morning and begin to back out of the driveway. Before your hand reaches the volume dial on the stereo to crank up your favorite morning radio duo, you hear a noise coming from your car. A vehicle shouldn’t make that noise, yet yours is. And it sounds bad. But is it?

“Spark plug” is a word you are likely familiar with; it’s one of those car terms that you’ve heard your whole life. You know they’re important, you know sometimes they need to be changed. But how do you know when it’s time to replace them? What do they do, and where do they go wrong? Harold's Used Auto Parts Inc in Philadelphia has the answers.

No matter what type of car, truck, or SUV you drive, old or new, it probably has doors. Those doors are heavy, and they see a lot of use. Naturally, from time to time, parts wear out. If your door doesn’t function as well as it should, here’s why, courtesy of Harold's Used Auto Parts Inc in Philadelphia.

If you’ve ever been in an emergency braking situation, you’re probably all too aware that the brakes are the most important safety system on your vehicle. And like many other systems in a vehicle, the brakes need regular upkeep to continue functioning properly. One way to preserve the integrity of the braking system is through brake bleeding, and while it may not be as well known as certain services like oil changes, it is a key maintenance item for a vehicle.

At Harold's Used Auto Parts Inc in Philadelphia, we know that keeping up with required maintenance schedules is the difference between a truck that lasts a few years and a truck that stays strong for decades.

Now that you know why your turbo is necessary, you’ll want to know what the turbocharger is made of. Turbos are intricate and precise components, but not actually all that complicated or difficult to understand. Here’s a rundown on the parts of a turbocharger, from Harold's Used Auto Parts Inc in Philadelphia, PA.

At Harold's Used Auto Parts Inc in Philadelphia, cars are our passion, so naturally, we like to keep up with new technology on the market. At the moment, surprisingly the current trend is moving towards a goal you may not expect; self-driving vehicles. You’ve probably heard about self-driving cars a little bit here and there on the news, but it likely still seems somewhere in the realm of science fiction to you. However, the reality is that self-driving cars are on the way and maybe here sooner than you think. Already, almost all major automobile manufacturers are dumping billions of dollars into research and development for self-driving cars, and even companies like Uber are jumping on board. 

Buying a used vehicle can be a risky endeavor, but also a rewarding one. Buying used, even if the vehicle is close to new, will save you a lot of money compared to the price of a new vehicle off the lot. However, there are some inherent risks that come with purchasing a used vehicle; here is how to best avoid trouble.

Nearly every day, you drive your vehicle. Whether it be a couple of miles to the store or a full-on road trip across the nation, you want to make sure that your vehicle is safe to drive and the systems are in check and/or up-to-date. Here are a few reminders to check and see if your vehicle is running in top shape.

It’s easier than ever to keep your fleet running smoothly for thousands of miles. If a vehicle has less than 50,000 miles on it today, chances are it still has 75 percent of its driving life ahead of it. That’s good news if you’re a company managing a fleet of vehicles. It wasn’t that long ago that hitting the 100,000-mile mark on the odometer was a major milestone. Today, vehicles are built to last. With the proper maintenance and attention, there’s no reason you shouldn’t expect to see that 50,000-mile reading on the odometer one day roll right past 200,000 and keep ongoing. Here at Harold's Used Auto Parts Inc, we're going to give you some tips on how to make that happen!

At Harold's Used Auto Parts Inc in Philadelphia, we know that the first and most important step toward keeping your car, truck, or SUV reliably on the road, is knowing how to properly care for it. Here are a few tips on how to keep your vehicle in shape.

Judging by the number of near-rear-endings we witness on our morning commutes, the typical attitude toward brake maintenance appears to be, “Brakes: Don’t let them stop you!” This puzzles us because monitoring your braking system’s health is one of the most straightforward aspects of car ownership. You do have to know what to look for, though, or rather, what to listen and feel for. So let us, uh, break it down for you. Here are the top three signs that your brakes need fixing.

A good technician will give your car a quick inspection whenever you have maintenance performed. Fluid levels, tire condition, dashboard lights, and a variety of other items typically are briefly explored whenever you bring your vehicle in for maintenance. At Harold's Used Auto Parts Inc in Philadelphia, we're good at noticing things that need repair, but the fact of the matter is that only you know your car. You know when your car feels off when its been serviced last (or that it hasn't been serviced at all,) and have at least some vague idea of what’s going on with your vehicle day to day. Here are some questions you can ask us next time you come by the shop;

At Harold's Used Auto Parts Inc in Philadelphia, we’re not only here to fix your car when something goes wrong...we’re here to help you understand your car, truck, or SUV a little better, too. Here are some tips concerning your thermostat - how it works, what to watch out for, and what to do about it when one fails.

Fleet operators know that a day’s work can burn through a lot of fuel. When it comes to multiple vehicles, even a slight change in the way vehicles are used can make a huge difference towards saving fuel, and money as a result. Whether you manage diesel trucks, fleet cars, or both, a little bit of effort can sometimes go a long way.Harold's Used Auto Parts Inc in Philadelphia, PA has a few tips you can use to keep fuel consumption low, that you may be interested in implementing throughout your fleet.

Gauges are your first, and often only, line of defense in catching a major problem before it’s too late. At Harold's Used Auto Parts Inc in Philadelphia, we know that sometimes a faulty gauge is overlooked when the truck is still running fine and there’s a busy day ahead. However, gauges are extremely important, and are typically easy to repair.

Losing a belt on the road can turn a small problem into a big one instantly. At Harold's Used Auto Parts Inc in Philadelphia, we know efficient and cost-effective operation begins with preventative maintenance.

On all modern vehicles, electronic engine controls have truly changed the game in terms of performance, efficiency, and reliability. On diesel trucks, whether you drive a Chevy, Dodge, or Ford, this innovation has been particularly revolutionary. The gains diesel engines have made in the past couple of decades are impressive by any standard, and electronic engine controls are a huge contributor to those developments.

Have you always wondered what a spark plug does? Our team here at Harold's Used Auto Parts Inc is here to help you out. It's simple in theory but does quite a lot of work for such a small piece of equipment. Your spark plug forces electricity to arc across a gap like a bolt of lightning at high voltage and fits into your engine's cylinder head, where it “sparks” to ignite the fuel and creates combustion within your engine. Without it, you wouldn't be able to drive your car or truck. 

Do you hear a funny clicking sound when you turn the wheels of your vehicle? It could be your car or truck's CV or Drive Axle, and it may be in need of repair. Safety is the number one priority for our customers here at Harold's Used Auto Parts Inc, and it is our goal to keep your vehicle running smoothly. Driving around with a damaged CV Joint or Drive Axle problem can be extremely dangerous. The axle is a structural component that bears the weight of the vehicle, any cargo, and the acceleration forces between you and the ground. It is so important to have your vehicle inspected regularly by a trained automotive repair professional here at Harold's Used Auto Parts Inc to ensure its safety.